US5170664A - Mountable force measurement apparatus - Google Patents

Mountable force measurement apparatus Download PDF

Info

Publication number
US5170664A
US5170664A US07/414,099 US41409989A US5170664A US 5170664 A US5170664 A US 5170664A US 41409989 A US41409989 A US 41409989A US 5170664 A US5170664 A US 5170664A
Authority
US
United States
Prior art keywords
trough
fixture
club
convergency
forcemeter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/414,099
Inventor
Louis S. Hirsh
Timothy Mechaley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INTERNATIONAL ATHLETIC WORLD Inc A CORP OF NE
International Athletic World Inc
Original Assignee
International Athletic World Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Athletic World Inc filed Critical International Athletic World Inc
Priority to US07/414,099 priority Critical patent/US5170664A/en
Assigned to INTERNATIONAL ATHLETIC WORLD, INC., A CORP. OF NE. reassignment INTERNATIONAL ATHLETIC WORLD, INC., A CORP. OF NE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HIRSH, LOUIS S., MECHALEY, JAMES T.
Application granted granted Critical
Publication of US5170664A publication Critical patent/US5170664A/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/36Training appliances or apparatus for special sports for golf
    • A63B69/3623Training appliances or apparatus for special sports for golf for driving
    • A63B69/3632Clubs or attachments on clubs, e.g. for measuring, aligning
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00Details of instruments
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B15/00Clubs for gymnastics or the like, e.g. for swinging exercises
    • A63B15/005Clubs for gymnastics or the like, e.g. for swinging exercises with a weight movable along the longitudinal axis of the club due to centrifugal forces
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/50Force related parameters
    • A63B2220/51Force
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00Bats, rackets or the like, not covered by groups A63B49/00 - A63B57/00

Abstract

A conventional centrifugal forcemeter having a centrifugally leadwardly extendable spindle is trailwardly provided with a fixture having an underlying trough portion abuttable against the external contour of a baseball bat, a golfclub, or other selectable athletic club. Flanking the fixture underlying trough are two plurally-tabbed rows. A flexible girthing band, preferably of annular shape and of elastic material, engages at least one ear-like tab of each fixture row and tightly girds the athletic club to maintain the fixtured forcemeter in removably attached, secure and operable condition to the selected athletic club.

Description

BACKGROUND OF THE INVENTION

The prior art teaches the concept of a centrifugal forcemeter, which for practice sessions, is removably attached to a manually wieldable atheletic club (e.g. baseball bat, polo stick, golfclub, etc.). Accordingly, during practice sessions of whipping the club toward an imaginary projectile (e.g. baseball, polo puck, golfball, etc.), the forcemeter apprises the athlete of his ability to impart motive force to an actual projectile during a future athletic competition.

Because the centrifugal forcemeter tends to interfere with actual projectiles, and because athletic competition rules rarely permit contestants to be assisted by metering devices, prior to interspersed practice and competitive sessions the centrifugal forcemeter must be intermittently re-attached to and re-detached from the athletic club. In the latter regard, prior art workers have relied upon socalled releasably attachable adhesive tapes. However, the use of such adhesive tapes for this purpose is fraught with numerous disadvantages including: tapes are tedious to apply to and to detach from the forcemeter/athletic club combination; tapes tend to visually obscure the forcemeter measurement indicia; and tape adhesive eventually delaminates and permanently fouls the forcemeter.

GENERAL OBJECTIVE OF THE INVENTION

It is accordingly the general objective of the present invention to provide a mountable apparatus for readily, securely, and reliably attaching a centrifugal forcemeter to various athletic clubs during contest-interspersed practice sessions and which does not visually obscure the forcemeter measurement indicia, and which mounting apparatus can be quickly and cleanly detached from the athletic club immediately prior to intervening athletic contests.

GENERAL STATEMENT OF THE INVENTION

With the aforestated general objective in view, and together with other ancillary and specific objectives which will become more apparent as this description proceeds, the mountable force measurement apparatus of the present invention generally comprises: a conventional centrifugal forcemeter having a fixture attached to and extending trailwardly therefrom, said fixture comprising a trough having linearly generated and convergent trough-surfaces including a first-surface and a second-surface, both trough-surfaces being adapted to simultaneously abut a linearly generated length of an athletic club, the first-surface remote from the trough-surfaces convergency merging with a plural-tabs first-row, and said second-surface remote from the trough-surfaces convergency merging with a plural-tabs second-row; and flexible and preferably elastic girthing band means for engaging tabs of said first-row and second-row, whereby the girthing band means is adapted to provide removably attachment of the forcemeter-attached fixture to a said selectable athletic club.

BRIEF DESCRIPTION OF THE DRAWING

In the drawing, wherein like characters refer to like parts in the several views, and in which:

FIG. 1 is a top plan view of a first representative embodiment (10M) of the mountable force measurement apparatus of the present invention, and especially adapted for use with a baseball bat type athletic club;

FIG. 2 is a trailward side elevational view of the FIG. 1 first embodiment;

FIG. 3 is a leadward side elevational view of the FIG. 1 first embodiment;

FIG. 4 is a sectional elevational view taken along lines 4--4 of FIGS. 1 and 5;

FIG. 5 is a top plan view of a second representative embodiment (10N) of the mountable force measurement apparatus of the present invention, and especially adapted for use with a golfclub type athletic club;

FIG. 6 is a trailward side elevational view of the FIG. 5 second embodiment;

FIG. 7 is a leadward side elevational view of the FIG. 5 second embodiment;

FIG. 8 is an elevational view of a typical baseball bat athletic club; and

FIG. 9 is a detail view of FIG. 8 and also showing the first representative embodiment (10M) in removably attached and operational condition therewith.

DETAILED DESCRIPTION OF THE DRAWING

Both representative embodiments (10M, 10N) of the mountable force measurement apparatus utilize a conventional centrifugal forcemeter (20) comprising a light-transmissive barrel component 21 and a spindle component 26, both extending along a meter-axis 20A. Barrel component 21 has: a circular inner-surface 22 and a circular outer-surface 23, both surrounding meter-axis 20A; an open lead-end 24; and an open trail-end 25. Spindle component 26 includes at least one trailwardly flared portion (e.g. branched part 27) that provides a moderately frictionally resistive, primary contact between the barrel and spindle components. Thus, and as known to the prior art; when such forcemeter (20) is taped to an athletic club at a position remote of the club handle, whipping maneuvers of the club toward an imaginary projectile will cause the spindle (26) to protrude outwardly beyond barrel lead-end, and in direct proportion to centrifugal force furnished by the training athlete. In the latter regard, barrel outer-surface 23 is etched or otherwise provided with graduated measurement indicia that indicate the degree of forced movement of spindle 26 along barrel inner-surface 22.

Representative embodiments 10M and 10N of the mountable force measurement apparatus comprise: a fixture (30, 40) attached to and extending trailwardly of the forcemeter barrel component (21), said fixture having an underlying trough (32, 42) provided by upwardly convergent and preferably uniplanar trough-surfaces that are simultaneously abuttable against a linearly generated length of a selectable athletic club, the trough-surfaces remote from their convergent line merging with generally parallel rows (38, 39; 48, 49) of ear-like tabs; and flexible and preferably elastic girthing band means (50M, 50N) for engaging the fixture (30, 40) at said plurally-tabbed rows and also for simultaneously tightly girding the athletic club, thereby providing secure removable attachment of the fixture-carried forcemeter to the athletic club.

For first embodiment 10M depicted in FIGS. 1-4 and 9, the fixture component 30 includes a leadward boss 31 that extends into forcemeter trail-end 25 and is thereat affixed (e.g. adhesive, etc.) whereby fixture 30 extends rigidly trailwardly of barrel 21. Fixture 30 has an underlying trough 32 provided by first-surface 33 and second-surface 34. Trough-surfaces 33 and 34 converge upwardly toward a convergency line 35 that lies along an imaginary vertical-plane passing through meter-axis 20A; however, convergency line 35 and meter-axis 20A are non-parallel, but rather (if indefinitely extended) converge leadwardly of barrel lead-end 24. As will be explained later in connection with FIGS. 8 and 9, such a non-parallel relationship between the trough convergency line (35) and the meter-axis (20A) is necessary whenever the linearly generated external contour of an athletic club is non-parallel to the club central-axis (CA). Remote of said trough convergency 35 and substantially parallel thereto, said trough first-surface 33 merges with a plural-tabs first-row portion 38; each ear-like tab of first-row 38 extends rigidly upwardly. Similarly remote of said trough convergency 35 and substantially parallel thereto, said trough second-surface 34 merges with a plural-tabs second-row portion 39; each ear-like tab of second-row 39 extends rigidly upwardly. Accordingly, first-row 38 and second-row 39 are substantially parallel to each other as well as to intervening convergency line 35. In addition to fixture component 30, first embodiment 10M comprises a flexible and preferably elastic girthing band 50M that is employed for removably engaging at least one tab of the respective rows 38 and 39 and also for simultaneously girding an athletic club i.e. the baseball bat type club of FIGS. 8 and 9.

For second embodiment 10N depicted in FIGS. 4-7, fixture component 40 includes a leadward boss 41 that extends into forcemeter trail-end 25 and is thereat affixed (e.g. adhesive, etc.) and whereby fixture 40 extends rigidly trailwardly of barrel 21. Fixture 40 has an underlying trough 42 provided by first-surface 43 and second-surface 44. Trough-surfaces 43 and 44 converge upwardly toward a convergency line 45 that lies along an imaginary vertical-plane passing through meter-axis 20A. Inasmuch as the linearly generated external contour of a golfclub shaft is ordinarily parallel to the shaft central-axis, covergency line 45 is desireably substantially parallel to meter-axis 20A. Remote of said trough convergency 45 and substantially parallel thereto, said trough first-surface 43 merges with a plural-tabs first-row portion 48; each ear-like tab of first-row 48 extends rigidly horizontally and away from a similar second-row 49. Similarly remote of said trough convergency 45 and substantially parallel thereto, said trough second-surface 44 merges with a plural-tabs second-row portion 49; each ear-like tab of second-row 49 extends rigidly horizontally and away from first-row 48. Accordingly, first-row 48 and second-row 49 are substantially co-elevational and parallel to each other as well as to the intervening convergency line 45. In addition to fixture component 30, second embodiment 10N comprises a flexible and preferably elastic girthing band 50N that is employed for removably engaging tabs from the respective rows 48 and 49 and also for simultaneously girding an appropriate athletic club e.g. a golfclub. In the latter regard, the discshaped ornamentation would be the fixture's closest proximity to the golfclub handle/grip.

Drawing FIG. 9 depicts in a general sense how a girthing band component (e.g. 50M, 50N) for the mountable force measurement apparatus provides a secure removable combination with various athletic clubs and depicts in a specific sense how girthing band 50M provides for secure removable and operational combination with the bell length (90B) of a baseball bat type (90) athletic club. It is seen that the linearly generated external contour (91) of bell length 90B is non-parallel to bat central-axis CA. If the trough convergency line 35 for fixture 30 were parallel to meter-axis 20A, forcemeter slidable spindle 26 would be on a collision course with bat contour 91 as bat 90 is being whipped toward an imaginary ball; such collision would render apparatus 10M inoperable. However, because convergency line 35 is non-parallel to meter-axis 20A, but instead leadward directional projections of 20A and 35 would intersect, forcemeter slidable spindle 26 is substantially parallel to (and non-collidable with) bat external contour 91. Accordingly, apparatus embodiment 10M, wherein trough-surfaces 33 and 34 simultaneously abut bat external contour 91, represents an operable removably attached combination with a baseball bat type athletic club.

From the foregoing, the construction and operation of the mountable force measurement apparatus will be readily understood and further explanation is believed to be unnecessary. However, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact constructions shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claims.

Claims (7)

What is claimed is as follows:
1. Mountable force measurement apparatus in removably attached secure combination with a manually wieldable athletic club having a substantially linearly generated length portion along the club external contour, said combination comprising:
(A) a conventional centrifugal forcemeter comprising a light-transmissive barrel component having an inner-surface and an outer-surface both surrounding a meter-axis that is substantially co-parallel with said club linearly generated length portion, said barrel having a trail-end and an open lead-end, said forcemeter further comprising a spindle component extending along said meter-axis, said spindle including at least one flared portion that provides slidable contact between said spindle and barrel components;
(B) a fixture attached to the forcemeter and extending rigidly trailwardly of the barrel component, said fixture including a trough having two linearly generated trough-surfaces including a first-surface convergently merging at a convergency line with a trough second-surface, both said trough-surfaces simultaneously abutting the linearly generated length portion of said athletic club, said first-surface remote from said convergency line and substantially parallel to said club linearly generated length portion merging with a plural-tabs first-row portion of said fixture, and said second-surface remote from said convergency line and substantially parallel to said club linearly generated length portion merging with a plural-tabs second-row portion of said fixture; and
(C) flexible girthing band means tightly girding said athletic club and also being removably engaged with at least one tab of said first-row portion and also with at least one tab of said second-row portion whereby said girthing band means maintains the fixture-attached forcemeter in removably attached secure condition against the linearly generated length portion of said athletic club.
2. The combination of claim 1 wherein the athletic club is a baseball bat having a linearly generated and divergent length portion; and wherein the trough-surfaces convergency is non-parallel with said meter-axis but substantially parallel to the bat divergent contour, whereby the forcemeter slidable spindle is non-collidable with the bat divergent contour.
3. The combination of claim 2 wherein projections of the trough convergency and the meter-axis intersect leadwardly of the forcemeter; wherein tabs of the first-row portion extend rigidly upwardly and away from the bat, and wherein tabs of the second-row portion extend rigidly upwardly from the fixture and away from the bat; and wherein the girthing band means is of annular form and provided of elastic material.
4. The combination of claim 1 wherein the trough-surfaces convergency is substantially parallel with said meter-axis; wherein the girthing band means is of annular form and provided of elastic material; and wherein tabs of the first-row portion extend away from the second-row portion and tabs of the second-row portion extend away from the first-row portion.
5. Mountable force measurement apparatus for use in removably attached combination with a manually wieldable athletic club having a substantially linearly generated length portion, said mountable force measurement apparatus comprising:
(A) a conventional centrifugal forcemeter comprising a light-transmissive barrel component having an inner-surface and an outer-surface both surrounding a meter-axis and having a trail-end and an open lead-end, and further comprising a spindle component extending along said meter-axis, said spindle including at least one flared portion that provides the primary contact between said barrel and spindle components;
(B) a fixture removably attachable to the forcemeter and extending trailwardly of the barrel component thereof, said fixture comprising a trough having two linearly generated and convergent trough-surfaces including a first-surface and a second-surface that merge at a convergency line, both said trough-surfaces being adapted to simultaneously abut a linearly generated length portion of said athletic club, said first-surface remote from the trough-surfaces convergency line and substantially parallel thereto merging with a plural-tabs first-row portion of said fixture, and said second-surface remote from the trough-surfaces convergency line and substantially parallel thereto merging with a plural-tabs second-row portion of said fixture; and
(C) flexible girthing band means for engaging at least one tab of said first-row portion and at least one tab of said second-row portion whereby said girthing band means is adapted to provide removable attachment of said fixture to a said athletic club.
6. The mountable force measurement apparatus of claim 5 wherein the trough-surfaces convergency line is substantially parallel with said meter-axis whereby the apparatus is adaptable for removable attachment to a golf club.
7. The mountable force measurement apparatus of claim 5 wherein the trough-surfaces convergency line is non-parallel with said meter-axis whereby the apparatus is adaptable for removable attachment to a baseball bat type athletic club.
US07/414,099 1989-09-28 1989-09-28 Mountable force measurement apparatus Expired - Fee Related US5170664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/414,099 US5170664A (en) 1989-09-28 1989-09-28 Mountable force measurement apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/414,099 US5170664A (en) 1989-09-28 1989-09-28 Mountable force measurement apparatus

Publications (1)

Publication Number Publication Date
US5170664A true US5170664A (en) 1992-12-15

Family

ID=23639954

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/414,099 Expired - Fee Related US5170664A (en) 1989-09-28 1989-09-28 Mountable force measurement apparatus

Country Status (1)

Country Link
US (1) US5170664A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997010879A1 (en) * 1995-09-19 1997-03-27 Keith William Salmon Golf aid
US5672809A (en) * 1996-02-29 1997-09-30 Brandt; Richard A. Method and apparatus for determining the performance of sports bats and similar equipment
US6053828A (en) * 1997-10-28 2000-04-25 Worth, Inc. Softball bat with exterior shell
US6173610B1 (en) 1998-12-23 2001-01-16 Robert L. Pace Sports swing impact speed indicator
US20110105256A1 (en) * 2007-11-15 2011-05-05 Leinert Bruce R Baseball bat
US9283457B2 (en) 2012-11-09 2016-03-15 Wilson Sporting Goods Co. Sport performance system with ball sensing
US9308426B2 (en) 2013-03-15 2016-04-12 Wilson Sporting Goods Co. Ball sensing
US9623311B2 (en) 2012-11-09 2017-04-18 Wilson Sporting Goods Co. Basketball sensing apparatus
US9656142B2 (en) 2012-11-09 2017-05-23 Wilson Sporting Goods Co. Basketball shot determination system
US9656140B2 (en) 2012-11-09 2017-05-23 Wilson Sporting Goods Co. Sport performance system with ball sensing
US9656143B2 (en) 2012-11-09 2017-05-23 Wilson Sporting Goods Co. Basketball shot determination system
US9724570B2 (en) 2012-11-09 2017-08-08 Wilson Sporting Goods Co. Ball lighting
US9844704B2 (en) 2012-11-09 2017-12-19 Wilson Sporting Goods Co. Basketball sensing apparatus
US9901801B2 (en) 2012-11-09 2018-02-27 Wilson Sporting Goods Co. Basketball sensing apparatus
US9916001B2 (en) 2014-07-08 2018-03-13 Wilson Sporting Goods Co. Sport equipment input mode control
US10159884B2 (en) 2012-11-09 2018-12-25 Wilson Sporting Goods Co. Basketball make-miss shot sensing
US10398945B2 (en) 2009-11-19 2019-09-03 Wilson Sporting Goods Co. Football sensing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543722A (en) * 1947-08-01 1951-02-27 Frederick W Hetzel Attachment for golf clubs
US3106403A (en) * 1961-01-23 1963-10-08 Servel Inc Club swing momentum indicator
US3561272A (en) * 1968-12-20 1971-02-09 Grady B Davis Speed indicator for clubs, bats and the like
US3848873A (en) * 1974-03-26 1974-11-19 D Linning Indicators for indicating accelerations in sports equipment which are swung in use

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543722A (en) * 1947-08-01 1951-02-27 Frederick W Hetzel Attachment for golf clubs
US3106403A (en) * 1961-01-23 1963-10-08 Servel Inc Club swing momentum indicator
US3561272A (en) * 1968-12-20 1971-02-09 Grady B Davis Speed indicator for clubs, bats and the like
US3848873A (en) * 1974-03-26 1974-11-19 D Linning Indicators for indicating accelerations in sports equipment which are swung in use

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997010879A1 (en) * 1995-09-19 1997-03-27 Keith William Salmon Golf aid
US5919098A (en) * 1995-09-19 1999-07-06 Salmon; Keith William Golf aid
US5672809A (en) * 1996-02-29 1997-09-30 Brandt; Richard A. Method and apparatus for determining the performance of sports bats and similar equipment
US6053828A (en) * 1997-10-28 2000-04-25 Worth, Inc. Softball bat with exterior shell
US6159116A (en) * 1997-10-28 2000-12-12 Pitsenberger; Dan S. Softball bat with exterior shell
US6287222B1 (en) 1997-10-28 2001-09-11 Worth, Inc. Metal bat with exterior shell
US6173610B1 (en) 1998-12-23 2001-01-16 Robert L. Pace Sports swing impact speed indicator
US20110105256A1 (en) * 2007-11-15 2011-05-05 Leinert Bruce R Baseball bat
US8066594B2 (en) * 2007-11-15 2011-11-29 Leinert Bruce R Baseball bat
US20120135827A1 (en) * 2007-11-15 2012-05-31 Leinert Bruce R Baseball bat
US8323131B2 (en) * 2007-11-15 2012-12-04 Leinert Bruce R Baseball bat
US8801551B2 (en) 2007-11-15 2014-08-12 Bruce R. Leinert Baseball bat
US9526960B2 (en) 2007-11-15 2016-12-27 Bruce R. Leinert Baseball bat
US10456639B2 (en) 2007-11-15 2019-10-29 Bruce R. Leinert Baseball bat
US10398945B2 (en) 2009-11-19 2019-09-03 Wilson Sporting Goods Co. Football sensing
US9339710B2 (en) 2012-11-09 2016-05-17 Wilson Sporting Goods Co. Sport performance system with ball sensing
US10159884B2 (en) 2012-11-09 2018-12-25 Wilson Sporting Goods Co. Basketball make-miss shot sensing
US9492724B2 (en) 2012-11-09 2016-11-15 Wilson Sporting Goods Co. Sport performance system with ball sensing
US9517397B2 (en) 2012-11-09 2016-12-13 Wilson Sporting Goods Co. Sport performance system with ball sensing
US9283457B2 (en) 2012-11-09 2016-03-15 Wilson Sporting Goods Co. Sport performance system with ball sensing
US9623311B2 (en) 2012-11-09 2017-04-18 Wilson Sporting Goods Co. Basketball sensing apparatus
US9656142B2 (en) 2012-11-09 2017-05-23 Wilson Sporting Goods Co. Basketball shot determination system
US9656140B2 (en) 2012-11-09 2017-05-23 Wilson Sporting Goods Co. Sport performance system with ball sensing
US9656143B2 (en) 2012-11-09 2017-05-23 Wilson Sporting Goods Co. Basketball shot determination system
US9724570B2 (en) 2012-11-09 2017-08-08 Wilson Sporting Goods Co. Ball lighting
US9844704B2 (en) 2012-11-09 2017-12-19 Wilson Sporting Goods Co. Basketball sensing apparatus
US9901801B2 (en) 2012-11-09 2018-02-27 Wilson Sporting Goods Co. Basketball sensing apparatus
US9457251B2 (en) 2013-03-15 2016-10-04 Wilson Sporting Goods Co. Ball sensing
US9308426B2 (en) 2013-03-15 2016-04-12 Wilson Sporting Goods Co. Ball sensing
US9375621B2 (en) 2013-03-15 2016-06-28 Wilson Sporting Goods, Inc. Ball sensing
US9916001B2 (en) 2014-07-08 2018-03-13 Wilson Sporting Goods Co. Sport equipment input mode control

Similar Documents

Publication Publication Date Title
US3368811A (en) Interlocking glove and handle
US3185483A (en) Golfer's turf-repairing implement and carrier therefor
US3970316A (en) Golf swing restrictor
US4519097A (en) Video game protective glove
US4052061A (en) Racket weighting means
US5230509A (en) Versatile putter
US5557806A (en) Weight-lifting glove having a securing strap and sleeve
US2975429A (en) Golf glove
US2950115A (en) Golf club attachment
US4295648A (en) Baseball pitcher's target
US4130950A (en) Shoe including golf ball position marker
US4895368A (en) Golf club and assembly process
US5524885A (en) Terry cloth golf club grip
US5395107A (en) Hitting training attachment apparatus
US7618336B2 (en) Sports equipment handle
US3883144A (en) Golf tee
US3604711A (en) Golf-putting guide
US3347551A (en) Directional pointer for a golf tee
US5511242A (en) Protective sports glove
US5184825A (en) Golf club practice apparatus
US4461043A (en) Batting accessory
US4893818A (en) Golf tee
US5779559A (en) Golf club with improved grip
US3833223A (en) Golf club assembly having interchangeable inner flex members
US4088251A (en) Tennis ball device

Legal Events

Date Code Title Description
AS Assignment

Owner name: INTERNATIONAL ATHLETIC WORLD, INC., A CORP. OF NE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:HIRSH, LOUIS S.;MECHALEY, JAMES T.;REEL/FRAME:005197/0569

Effective date: 19890929

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Expired due to failure to pay maintenance fee

Effective date: 19961218

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362